Audacity Forum

I suddenly had a need for a Chebyshev filter and remembered this one.
Since I was using it, I've added some error checking and streamlined the code a bit. Functionally this version is identical to the original (which works very well) but a lot less likely to return errors.

Well I agree that there is some high pitched noise there, which sounds like it could be power supply noise, but the main thing that I notice is a very loud low pitched hum. Is that supposed to be there?

robcamfield wrote:have attached as WAV file, hope this is better.

No, that's an XML file.

To create an audio file you need to Export. See here for details: http://manual.audacityteam.org/o/man/ex ... audio.html

An AUP file is not an audio file. We can't listen to that file because there is no audio data in AUP files. See here for an explanation: http://manual.audacityteam.org/o/man/audacity_projects.html See here for how to send audio samples to the forum: http://forum.audacityteam.org/viewtopic.php?f=49&a...

At least the "sum and difference" part is easy (it's about the only part that is)

What is likely to most harm the sound quality, and what harms it least? Reducing the bit depth reduces the dynamic range? less bits = more hiss. Reducing the sample rate reduces the frequency bandwidth: less samples per second = lower high frequency cut-off = duller sound. ADPCM provides much bette...

I'd suggest that you get back in touch with the game people and ask them precisely what format they need the music in. You need to know: Number of channels (mono/stereo) Sample rate (usually one of: 8000, 11025, 16000, 22050, 32000, 44100) Bit depth (usually 4, 8, or 16) Bit format (Signed, Unsigned...

if someone could redirect me to the dsp source code (If I am able to use it) It's here: http://code.google.com/p/audacity/source/browse/audacity-src/trunk#trunk%2Fsrc%2Feffects You can use it subject to the terms of the GPL v2 license. The effectiveness of the Audacity Noise Removal effect is highl...

I've just been told by the game people that the piece they're replacing with mine is in WAV format but is only 400KB in size, and they need mine to be a relatively similar size - theirs is shorter, probably 2mins long I don't think that is possible without looping. 2 minutes, mono, at 8000 Hz sampl...

I´m trying to record 'what u hear' like vocals from movie voor the use in tracks Then, in the device toolbar you need to set the playback (output) device to use the on-board sound card and the recording (input) device to use "Stereo Mix". If you want to hear what is happening then you wil...